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APA-THE ENGINEERED WOOD ASSOCIATION

This is a listed siding assembly. Listing 8140-2020:0002. This site cites cal-fire-bml. Match the model and orientation. A listing is not a permit.

“APA 303®” plywood siding with reverse-board and batten with shiplap edges, nominal 19/32” thick (19/32 Performance Category) or greater, grooves spaced no closer than 12” on center or without grooves, manufactured with face, back and center of Douglas Fir veneers and cross ply veneers of PS1 Group1 or 2 species, 4’x8’ *or taller panel. Refer to the manufacturer's installation instructions and product data sheets.

Kind: listed-assembly. Brand: APA-THE ENGINEERED WOOD ASSOCIATION. Listing evidence: OSFM WUI handbook 2026-08-25. Page reviewed 2026-08-23. JSON (CC BY 4.0)

ProgramID / sourceEvidence dateExpiresStatus
CAL FIRE BML 8140-2020:0002 · Search BML for 8140-2020:0002 2026-08-25 2027-06-30 listed

Tests and programs cited

Sources

APA-THE ENGINEERED WOOD ASSOCIATION. FireApproved. https://fireapproved.com/materials/apa-the-engineered-wood-association-2020-0002/. Last verified 2026-08-23.